State Reps. Sharon Wylie and Jim Moeller, both Democrats from Vancouver, are among 23 lawmakers, including one Republican, sponsoring a bill that would require background checks before all gun sales.

Though licensed gun dealers currently must conduct background checks before sales, unlicensed dealers like those at gun shows do not have to check buyers’ criminal history.

House Bill 1588, which was introduced Wednesday, would expand the requirement to cover all gun sales in Washington, including private sales. For instance, if a person wanted to sell a gun to a neighbor, the neighbor would need to get a criminal background check before buying the gun.

The bill requirements would not apply to the sale of antique guns.

Moeller said the legislation is part of a common sense solution to gun control. Requiring all gun dealers to conduct background checks is part of a package that should also include mental health and gun safety regulations, he said.